Question 13 Marks
Create a magic square whose magic sum is 51.
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Question 23 Marks
Find the parity of the number of small squares in grids of the given dimensions without calculating the product.
(a) 23 × 19
(b) 62 × 26
(c) 124 × 271
(a) 23 × 19
(b) 62 × 26
(c) 124 × 271
Answer
View full question & answer→(a) Both 23 and 19 are odd numbers, and Odd × Odd = Odd.
So, the parity of the number of small squares is odd.
(b) Both 62 and 26 are evfen numbers, and Even × Even = Even.
So, the parity of the number of small squares is even.
(c) 124 is even, 271 is odd, and Even × Odd = Even.
So, the parity of the number of small squares is even.
So, the parity of the number of small squares is odd.
(b) Both 62 and 26 are evfen numbers, and Even × Even = Even.
So, the parity of the number of small squares is even.
(c) 124 is even, 271 is odd, and Even × Odd = Even.
So, the parity of the number of small squares is even.
Question 33 Marks
Find the number sequence formed when the given arrangements are changed as mentioned below.
(a) BFECDAG
(b) FBCEADG
(c) FDGBCEA
(a) BFECDAG
(b) FBCEADG
(c) FDGBCEA
Answer
View full question & answer→(a) 0022153
(b) 0123413
(c) 0122456
(b) 0123413
(c) 0122456